34.7. Yield of Wells in Different Aquifers

Try these first

1. 1.

   What characterizes unconfined aquifers?

   Hint

   Think about how water gets into them.

2. 2.

   How does a confined aquifer yield water?

   Hint

   Consider what’s above and below them.

3. 3.

   What is a major characteristic of unconfined aquifers?

   • High containment
   • Direct atmospheric exposure
   • Limited recharge

   Hint

   Consider how they receive their water.

4. 4.

   True or False: Confined aquifers recharge quickly.

   • True
   • False

   Hint

   Think about the pressure conditions.

5. 5.

   If an unconfined aquifer has a recharge rate of 5 liters per minute per square meter, how long would it take to replenish a well that has drawn 1000 liters?

   Hint

   What is the formula for time?

6. 6.

   Design a basic management strategy for a community relying on a confined aquifer that is experiencing pressure decline. What factors would you consider?

   Hint

   Think about balancing supply and demand.